added new fixed code

misc.py

@@ -0,0 +1,11 @@
+import numpy as np
+import librosa
+from settings import N_FFT, HOP
+
+
+def audio_to_logmag(audio):
+    # STFT
+    stft = librosa.stft(audio, n_fft=N_FFT, hop_length=HOP)
+    mag = np.abs(stft)
+    logmag = np.log1p(mag)  # log(1 + x) for stability
+    return logmag  # shape: (freq_bins, time_frames) = (513, T)